Solve 2( 4x - 1) = 18

Answers

Answer 1
the answer is 2.5

2 (4x - 1) = 18
8x - 2 = 18
8x = 20
x = 2.5
Answer 2

Answer:

x=2

Step-by-step explanation:

Simplifying

2(4x + 1) = 18

Reorder the terms:

2(1 + 4x) = 18

(1 * 2 + 4x * 2) = 18

(2 + 8x) = 18

Solving

2 + 8x = 18

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2' to each side of the equation.

2 + -2 + 8x = 18 + -2

Combine like terms: 2 + -2 = 0

0 + 8x = 18 + -2

8x = 18 + -2

Combine like terms: 18 + -2 = 16

8x = 16

Divide each side by '8'.

x = 2

Simplifying

x = 2


Related Questions

PLZ HELP WILL MARK BRANLIEST

What events in Hitler Youth have impacted individuals or ideas?

Answers

Answer:

Hitler Youth, founded in 1926, young children were taught how to use weapons and how to kill. This could have had a psychological effect on their developing minds. They were also taught the ideals and values of Hitler. They were taught that the ideal way to be was cis, straight, Christian, white, blonde, and blue eyes. Some children didn't possess these qualities negatively affecting the way they view themselves and those who did possess these traits dramatically looked down on others. The purpose of the Hitler Youth was to train children to be prepared to give their lives for their country.

Step-by-step explanation:

The sales tax in a major city is 7%. Find the cost, including the tax charged on a purchase of $200.

Answers

Answer:

$214

Step-by-step explanation:

200*0.07 = 14, 200 + 14 = 214

what does this equal 12*5*6*100*67*82*200*419*638*35*134

Answers

Answer:

4.959395e+19

Step-by-step explanation:

12*5*6*100*67*82*200*419*638*35*134 = 4.959394955x10^19

you can always use a calculator for these large calculations

Together, the areas of the rectangles sum to 30 square centimeters.
3 cm
2 cm
cm
y cm
1. Write an equation showing the relationship between 3 and y.
Type the equation in the box below.
I

Answers

Answer:

3x+2y

Step-by-step explanation:

Find the rectangles attached

Area of a rectangle = Length * Width

A = A1+A2

given

A = 30cm²

A1 = 3 * x

A1 = 3x

A2 = 2*y

A2 = 2y

Substitute

30 = 3x+2y

Hence the required equation is 3x+2y = 30

Answer: 3x + 2y = 30

Step-by-step explanation:

A = L x W

The sum of the rectangle is 30.

One angle is 3 and x, the other one is 2 and y.

Multiply 3 with x = 3x.

Multiply 2 with y = 2y

Then create your equation plugging in 30 as the answer to 3x + 2y

12. Find the values of x, y, and z.
(1 point)

Answers

Answer:

b. x = 80, y = 100, z = 63

Step-by-step explanation:

Piper has a flower shop. She started the week with 320 flowers. Each day she sells half of the flowers in her shop.
Which graph shows the exponential decay described?
320
280
240
Flowers 200
Left
160
120
80
40
320
280
240
Flowers 200
Left
160
120
80
40
OA
Oc.
0 1 2 3 4 5 6
Days
0 1 2 3 4 5 6
Days
320
280
240
Flowers 200
Left
160
120
80
40
320
280
240
Flowers 200
Left
160
120
80
40
OB.
OD
0 1
2 3 4 5 6
Days
0 1 2 3 4 5 6
Days

Answers

Answer:

Step-by-step explanation:

the answer is C! i’m doing this right now as well

What is another name for the height of a prism or a pyramid?
A. Altitude
B. Length
C. Base
D. Lateral face

Answers

Answer:

A . altitude

Step-by-step explanation:

I’m confused about this question

Answers

angle B is 102° bc 180-78=102 and if sides DB and BC are congruent, angles D and C must also be, so you can use the original 78 and divide by 2 to get 39° for angle C

NEED HELP WITH MATH !

Answers

Answer:

1.50 liter/hr

Step-by-step explanation:

using;

[tex] \frac{6 - 3}{4 - 2} [/tex]

=3/2= 1.50 liter/hr

Mr. P mowed 2/7 of his lawn. His son mowed 1/4 of it who mowed the most how much of the lawn still need to be mowed. Solve using the RDW strategy

plzzz help meh I WILL MARK 50 points!!!!!!

Answers

Answer:

Step-by-step explanation:

1/3

The capacity of Dr Khan's oil tank is 1,200 litres.
There are currently 650 litres of oil in the tank.
Oil costs 77.2p per litre.
Dr Khan gets a 5% discount on the price of oil.
How much does it cost Dr Khan to fill the oil tank?

Answers

Answer:

it costs = 40337p

Step-by-step explanation:

a) 1200 - 650 = 550L

b) 77.2p - 77.2 x0.05 = 73.34p per litre

c) the total money it costs to be filled the the oil tank by Dr Khan is 73.34 x 550L = 40337

WILL MARK BRAINLIEST!!!

This is a continuation to the other question

Answers

Answer:

m=86 degrees

x=98 degrees

Step-by-step explanation:

1:

the angles of a triangle are 180

180-71-23=86

m=86

2:

the angles of a triangle are 180

180-52-30=98

x=98

hope this helps and is right!

Can someone please help me with this problem please?

Answers

Answer:

6.86

Step-by-step explanation:

ask if you dont understand

You expected to walk 80 km in a day. You walked only 75 km. What was the percentage error?
596
6.25%
6.6796
93.3396

Answers

Answer:

Um my answer is 6.66666666667, so you could use this to help you (sorry i didn't get actual answer)

Step-by-step explanation:

Examine the linear graph to find the slope , y-intercept, and write the equation for this linear relationship ​

Answers

Answer:

The slope of the line is: [tex]m=-\frac{1}{2}[/tex]

The y-intercept b = 3

The slope-intercept equation of the line is:  [tex]y\:=\:-\frac{1}{3}x+3[/tex]

Step-by-step explanation:

Taking two points from the given graph

(0, 3) and (6, 0)

Determining the slope m

The slope between (0, 3) and (6, 0) using the formula

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

where m is the slope between (x₁, y₁) and (x₂, y₂)

In our case,

(x₁, y₁) = (0, 3) (x₂, y₂) = (6, 0)

now substitute (x₁, y₁) = (0, 3) and (x₂, y₂) = (6, 0) in the slope formula

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{0-3}{6-0}[/tex]

[tex]m=-\frac{3}{6}[/tex]

[tex]m=-\frac{1}{2}[/tex]

Thus, the slope of the line is: [tex]m=-\frac{1}{2}[/tex]

Determining the y-intercept (b)

The slope-intercept form of the line equation is given by

[tex]y = mx+b[/tex]

where

[tex]m[/tex] is the slope[tex]b[/tex] is the y-intercept

From the graph, we can figure out the y-intercept by checking the value of y at x = 0.

If we closely check the graph, at x = 0, the value of y = 3

Therefore, the y-intercept b = 3

Slope-intercept Equation

We already know that the slope-intercept form of the line equation is

[tex]y = mx+b[/tex]

substituting b = 3 and m = -1/2

[tex]y\:=\:-\frac{1}{2}x+3[/tex]

Therefore, the slope-intercept equation of the line is:  [tex]y\:=\:-\frac{1}{2}x+3[/tex]

The graph is also attached below.

HELP ASAP!!!! HELP HELP

Answers

Answer:

proportional

Step-by-step explanation:

Answer:

I'm 99% sure it's Non-Proportional

Step-by-step explanation:

If you were to convert each of them into fractions and simplified them, they wouldn't be equivalent.

help I can’t do basic math skjsjdmdmx

Answers

Answer:

2/8 which simplifies to 0.111111

Step-by-step explanation:

Paula is the student council member responsible for planning an outdoor dance. Plans include hiring a band and buying and serving dinner. She wants to keep the ticket price as low as possible to encourage student attendance while still covering the cost of the band and the food.
Question 1: Band A charged $600 to play for the evening and Band B changers $350 plus $1.25 per student.
Write a system of equations to represent the cost of the two bands.

Answers

Answer:

Plans include hiring a band and buying and serving dinner. She wants to keep the ticket price as low as possible to encourage student attendance while still covering the cost of the band and the food. Question 1: Band A charged $700 to play for the evening and Band B changers $550 plus $1.50 per student.

Step-by-step explanation:

Simplify (n-1) + n

Easy.

Answers

Answer:

2n - 1

Step-by-step explanation:

you add the 2 ns to get 2n then you  add the 1 to the equation to make

2n - 1

Be prepared!!! Help please!!!! What is 1/3x 3.14x6^2x11 equal????

Answers

I believe it’s 414.48

If y = x + 3, what is y if x = 4?

Answers

Answer:

7

Step-by-step explanation:

y = x+3

y = 4+3

y = 7

brainlist plz

7 is the answer...............

Find the area of a square with the side lengths of (1/2x+2)

Answers

Answer: There are no like terms

Step-by-step explanation:

Your parents are building a pool that is 7 ft wide and 12 ft long. They want to put a walkway around the pool that is x ft wide on all sides. Write a polynomial that represents the combined area of the pool and walkway. Answer needs to be in standard form and use x as your variable.

Answers

Answer:

25 /12*6 =12.5

Step-by-step explanation:

thats what i got

0.01 × 0.001
answer This​

Answers

Answer:

0.00001

Step-by-step explanation:

After a 40% discount, the cost of a sofa is $471.00. What was the original cost of the sofa? NEED HELP ASAP

Answers

Answer: $659.40

Step-by-step explanation: You start with 471.00 X 0.4 which equals $188.40. So then you add $471.00 and $188.40 and you get $659.40!

The percentage is calculated by dividing the required value by the total value and multiplying it by 100.

80% = $471

100% = $588.75

The original cost of the sofa is $588.75

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying it by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

We have,

Original cost in percentage = 100% ____(1)

Cost after 40% discount = $471

This can be written as,

80% = $471 _____(2)

From (1) and (2) we get,

80% = 471

Multiply 100/80 on both sides,

100/80 x 80% = 100/80 x 471

100% = $588.75

Thus,

80% = $471

100% = $588.75

The original cost of the sofa is $588.75

Learn more about percentages here:

https://brainly.com/question/11403063

#SPJ2

Write an equation in slope-intercept form that passes through (5, -8) and runs perpendicular to y = 5/2x + 4

Answers

y= (-2/5)x-6

Step-by-step explanation:

the slope of the line perpendicular the the given line is found by the formula m1.m2= -1 hence m2= -2/5

using the slope-intercept form

y+8= -2/5(x-5) y= (-2/5)x-6

what place value is 7 in 7,000.2

Answers

Answer:

thousands place

Step-by-step explanation:

Have a nice day

Solve this equation: b - 120 = 80

What is the value of b? (what is b)

Answers

Answer:

b=200

Step-by-step explanation:

Cancel -120 from both sides by adding 120 to the other side:

b=80+120

b=200

Answer:

b= 200

Hope it helps, if not, I'm so sorry.

1. What is the formula for Pythagorean Theorem
2. What does the A represent
3. What does the B represent
4. What does the C represent
5. Pythagorean Theorem can be used with what SPECIFIC shape?
6. If A= 4, and B = 5, what is length of the hypotenuse? Show all work

Answers

Answer:

The formula is a^2 + b^2 = c^2

Step-by-step explanation:

A and B are legs and C is the hypothunisis.

The theorem is used for triangles.

4^2  + 5^2 = c^2

16 + 25 = c^2

41 = c^2

sqr(41) = sqr(c)^2

c = 6.403124237

mr. knox's rent during the past year amounted to $2700 per year. His rent was 20% of his income. find his income fo the last year.

Answers

Answer:

$13,500

Step-by-step explanation:

20% is 1/5, so to figure out his income we multiply 2700*5=13500

Answer:

$13,500

Step-by-step explanation:

Fraction: 20/100 = 2700/x

Find x

20x=270000

Divide 20 by both sides

X=13,500

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